You operate a small wooden toy company making two products: alphabet blocks and wooden trucks. Your profit is $30 per box of blocks and $ 40 per box of trucks. Producing a box of blocks requires one hour of woodworking and two hours of painting; producing a box of trucks takes three hours of woodworking, but only one hour of painting. You employ three woodworking and two painters, each working 40 hours a week. How many boxes of blocks and trucks should you make each week to maximize profit? Solve graphically as a linear programing problem.